Results 61 to 70 of about 3,012,109 (369)
Research on the Identification of Matheran Wine Region in the East Foot of Helan Mountain
Shipin gongye ke-jiObjective: To explore the feasibility of using stable carbon and oxygen isotopes and mineral elements in small-scale regional wine production identification, the fractionation characteristics of stable isotopes of carbon and oxygen in wine of Matheran ...
Jianrong KAI +7 more
doaj +1 more source
Isotopic Composition of Carbon in Vinegars
Journal of AOAC INTERNATIONAL, 1985 Abstract Measurements of δ13C and 14C-activity were performed on vinegars from various known sources. Natural vinegar can be distinguished from petrochemical acetic acid by 14C-analysis: Natural vinegar currently gives values of > 112% of modern activity; petrochemical acetic acid yields values of 0% of modern activity.
Dana A Krueger, Harold W. Krueger
openaire +3 more sources
Dual stable isotope abundances unravel trophic position of estuarine nematodes [PDF]
, 2005 The role and quantitative importance of free-living nematodes in marine and estuarine soft sediments remain enigmatic for lack of empirical evidence on the feeding habits and trophic position of most nematode species.
BOUILLON, S, GALLUCCI, F, Moens, Tom
core +1 more source
Advanced Functional Materials, EarlyView.This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann +4 more
wiley +1 more source
Pyrolysis experiment and reservoir-forming potential of epimetamorphic rock
Petroleum Exploration and Development, 2009 By taking pyrolysis experiments and analyzing composition and carbon isotopes of pyrolysis products, the hydrocarbon generation potential and products geochemistry of very low-grade epimetamorphic rocks were studied.
Yang Chun +4 more
doaj +1 more source
Carbon isotopes in the ocean model of the Community Earth System Model (CESM1)
, 2014 . Carbon isotopes in the ocean are frequently used as paleoclimate proxies and as present-day geochemical ocean tracers. In order to allow a more direct comparison of climate model results with this large and currently underutilized data set, we added a ...
A. Jahn +6 more
semanticscholar +1 more source
Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
wiley +1 more source
Measurement of excited states in 40Si and evidence for weakening of the N=28 shell gap [PDF]
, 2006 Excited states in 40Si have been established by detecting gamma-rays coincident with inelastic scattering and nucleon removal reactions on a liquid hydrogen target.
A. Gade +20 more
core +2 more sources
Advanced Functional Materials, EarlyView.Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida +16 more
wiley +1 more source
Can Mg isotopes be used to trace cyanobacteria-mediated magnesium carbonate precipitation in alkaline lakes? [PDF]
, 2011 The fractionation of Mg isotopes was determined during the cyanobacterial mediated precipitation of hydrous magnesium carbonate precipitation in both natural environments and in the laboratory.
Balor, S. +8 more
core +3 more sources